Pits And Fissures

Question 1

fissure sealant definition

Answer 1

substance placed in pits and fissures to prevent plaque, bacteria, fermentable foods eg sugars and starched from entering fissures and causing caries

Question 2

indications for fissure sealant

Answer 2

Patient factors:

• High risk, based on CRA
• Special needs, unable to clean teeth very well/cariogenic diet

Tooth factors

• Sound teeth with deep fissures that are difficult to clean
• Hypomineralised enamel more prone to cavitation
• Occlusal caries in one first permanent molar, seal other side

Question 3

what to fissure seal when high/medium/low risk

Answer 3

high risk seal primary and permanent posterior teeth

medium risk seal permanent molars

low risk seal teeth with very deep detentive fissues

Question 4

contraindications for fissure sealant

Answer 4

low crown height (moisture control)
uncooperative patient
dentinal caries

Question 5

how much to extend fissure sealant

Answer 5

2mm up cuspal inclines

Question 6

what to check for after placing fissure sealant

Answer 6

retention, extension, voids occlusion

Question 7

definition of prr

Answer 7

removal of isolated carious lesions within pits and fissures, restore with cr and seal remaining pits and fissures

Question 8

indications for prr

Answer 8

pit and fissure caries extending into dentine, high risk pits and fissures remaining. no pulpal involvement

prophylactic treatment of denx evaginatus